Tire.



J. H. MESSENGER.

TIRE.

AIPLIOATION FILED MAR. 19, 1912.

Patented Mar. 25, 1913.

2 SHEETSSHEET 1.

J. H.- MESSENGER.

TIRE

' Patented Mar. 25,1913.

2 SHEETS-SHEET 2.

IGATIOH FILED LIA 19, 1912 n srnwnr OFFICE.

JOHN HENRY MESSENGER, OF LONDON, ENGLAND.

nosmee. v

Specification of Letters Batent.

Patented Mar. 25, 1913.

Application filed March 19, 1912. Serial No. 684,690.

ments in the details of construction and arrangement of parts which will be hereinafter described and particularly pointed out in the claims.

lin the accompan ing drawings :Figure 1, is a side view of a portion of a tire according to the invention, the parts being broken away successively to indicate the parts in section. Fig. 2, is a cross section of the tire on a larger scale. Fig. 3, is a plan of a portion of the cover. Fig. 4, is a. plan of a modified form of cover.

In the form of tire illustrated in the drawings, the tire cover a, is provided with inclined ribs b, c. ihe ribs 7), terminateat the rise of the tread while the ribs 0, terminate at the tread in the form of knuckles d, and then merge into protuberances e, of hemispherical or ovoid form on the tread.

When the tire is under load, the protu berances e, are thrust through any greasy matter on the road surface and come into contact with the firmer surface. Should there be any tendency to side slip or skidding, the knuckles (Z, as well as the protuberances e, are thrust firml into cont-act with the road surfaces, .and s 'dding is revented- Metal studs 0, me. be secure to the tire cover if desired. en the tires are used on motor cars, the ribs '5, 0, may be provided only on the outer side of each tire as indicated in Fig. 3, but with tires used on motor cycles the ribs are preferably provided on both sides as shown in Fig. 4.

f, are cords which resistexcessive circumferential stresses which may occur when the brakes are applied or under similar conditions.

g, are disks which may be erforated as at h, andbind or lock the cor s to the rubs ber structure of the cover.

The inner tube 11, is preferably of corrugated form as shown, the corrugations being provided inside and outside.

To resist bursting or undue expansion,

cords, strips of canvas p, or the like are embedded in the inner tube.

The special form of' inner tube insures plenty of air spaces between the inner tube and cover and minimize the area of surface contact between the tube and cover, thereby tending to maintain the cover cool in use.

The usual canvas layers m, are preferably of open mesh formation or woven with numerous holes. 4

I claim:

1. A tire provided on its outer surface with a plurality of inclined ribs arranged. side by side and merging into each other on the side of the tire, certain of said ribs terminating some distance from the tread surface of the tire, and the remainder of said ribs extending over the tread surface, projections on the tread surface adjacent the ribs which extend over said surface, the said latter ribs merging into the projection, the

said projections extending beyond the outer I tread surface of the ribs.

2. A tire provided on its outer surface with inclined ribs arranged side by side and merging into each other on the side of the tire, each alternate rib terminating short of the tread of the tire and the remaining ribs extending over the tread surface, rojections extending from the tread sur ace, the ribs which extend over the tread merging into said projections, the projections being substantially in transverse almement with the ends of the ribs which terminate short of the tread surface.

3. A tire rovided on its outer surface with incline ribs arranged side by side,

each alternate rib terminating short of the tire tread, while the other ribs extend over the tread surface and are reversely curved, projections extending [from the tread surminating some distance from the tread surname to this specification in the presence of fage of thel tire, and the remgindefr of saig two subscribing witnesses. ri s exten ing over t e trea sur ace, an v projections on the tread surface adjacent JOHN HENRY E G 5 the ribs which extend oversaid surface, the Witnesses:

said latter ribs merging into the projections. FREDERICK ERNEST SQUIRE,

In testimony whereof I have signed my JOHN T. EAKINB. 

